美國愛荷華州參議員格拉斯利表示,幾乎1/3的愛荷華州已被洪水淹沒,而且水位還在持續升高當中,他極力爭取聯邦政府對愛荷華州提供財政援助。水位在該州各地持續升高,而美國總統也對此做出因應的指示。
在州層級方面,州長卡維爾已對83個郡發出災情聲明,而這項聲明也帶動愛荷華州發起個別的賑災行動,以協助低收入民眾度過難關。
在此同時,洪水、撤離和道路封閉的情節仍持續在愛荷華州各地上演。
美國國家氣象局12日將此次錫達拉皮茲的水災稱為「歷史上罕見的水患」,河床水位已高出堤防,達到500年來的最高點,導致近4000戶家庭被迫撤離。
下不停的大雨和不斷升高的第蒙河水位,於14日引發泥造防洪堤爆炸,居住在第蒙河北邊的鄰近民眾也遭到撤離,超過200個家庭受到影響,北第蒙高中校區也被水淹沒。
超過1000棟大樓汲汲可危,暴漲的愛荷華河也讓愛荷華市有一半街道浸泡在這場史上罕見的水災中。約350名國民警衛隊員目前部署在愛荷華市,地方官員也針對當地重要的建築物進行搶救,包括沙袋的填充和運送。
愛荷華自然資源部建議農民不要將破瓦殘礫、沙子或沈積物棄置到溪流中,這樣的舉動將惡化愛荷華州民已經面臨的淹水問題,假如溪流中的沈積物被沖刷至下游,將可能對下游地區造成損害,或者停留在原地而導致洪水向高地逆流。
在大雨衝擊愛荷華州的同時,自然資源部也要求家畜業者檢查肥料貯藏地,避免因水位升高導致肥料滲透到地下水中,造成水源污染。
當地下水位超出建築物設計初始所預期的高度時,不論是混凝土或泥造建築都容易出現倒塌的危險。
"Nearly one third of Iowa is already under water and water levels continue to rise," said U.S. Senator Chuck Grassley of Iowa, urging federal financial assistance for his state. Waters are still rising in many parts of the state and the president responded.
On the state level, Governor Chet Culver has issued a disaster proclamation for 83 counties. The governor's proclamation activates Iowa's individual disaster assistance program, which helps people with low incomes.
Meanwhile, the flooding, evacuations and road closures continue across the state.
The National Weather Service called flooding in Cedar Rapids a "historic hydrologic event" Thursday as the river over-topped its banks at 500-year flood levels, forcing the evacuation of nearly 4,000 homes.
Continuous rain and rising floodwaters of the Des Moines River caused an earthen levee to burst on Saturday forcing the evacuation of north-side Des Moines neighborhoods that affected more than 200 homes and flooding North High School.
More than 1,000 buildings are at risk and the raging Iowa River has cut Iowa City in half with record-setting flooding. Some 350 National Guard soldiers are currently deployed in Iowa City and local officials continue to work to protect critical structures within the area, including filling and delivering sandbags.
The Iowa Department of Natural Resources, DNR, is recommending that farmers do not move any debris, sand or sediment into a stream, as it can intensify the problems many Iowans are already facing. If sediment placed in the stream and washes away, it can cause damage downstream. Or, it can settle in place and cause water to back up into upland areas.
As rainfall continues to pummel Iowa, the DNR is urging livestock producers to check their manure storage structures, which could be threatened by saturated soils.
Both concrete and earthen structures could be endangered if groundwater levels rise higher than were expected when the structure was designed.
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